Argh! I hate to sound fussy, or pedantic, but there's no such thing as a vegetarian who eats fish - Just pescetarians who don't know their real name! haha It really bugs me when people say "I'm a vegetarian, do you eat fish, too?", or when I'm out and ask for the vegetarian options, and am brought a menu full of fish-stuff and no real veggie food! (so annoying!)
Wiki's definition of vegetarian is, 'Vegetarianism is the practice of a diet that excludes all animal, including poultry, game, fish, shellfish or crustacea, and slaughter by-products'
so people who say they are vegetarians who eat fish are not really vegetarians at all! Sorry if I sound really snobby and picky - I'm not really, it's just that pest-etarians posing as veggie's are a pet hate of mine! haha